Tough customer (Pixiv Fanbox)

このおじさん・・思った以上にタフだなあ。一度済んだら速攻終了！・・て思ってたのに・・これでもう何回目なのよ？なんか私まで変になってきちゃったじゃない・・ This old man is tougher than I thought. Once done, the quick attack is over! I was thinking...how many times has this happened already? Even I have become strange...